Conduit Fill Table

This conduit fill table is used to determine how many wires can be safely put in conduit tubing.The rows going across is the size of the conduit and the type. The columns going down shows the gauge of wire that is being used. The results are the numbers of wires of that gauge, that can be run through that size, of that kind of conduit such as EMT, IMC, and galvanized pipe. This chart is based on the 2017 NEC code.

Above information referenced from tables C1, C4, and C8 in the National Electric Code of 2008.
For more information on the following types of conduit, please see the table listed below in the appendix C of the National Electric Code of 2008.